Actions
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step. The quadriceps, specifically the vastus medialis, plays the important role of stabilizing the patella and the knee joint during gait.
Read more about this topic: Quadriceps Femoris Muscle
Famous quotes containing the word actions:
“Now they express
All that’s content to wear a worn-out coat,
All actions done in patient hopelessness,
All that ignores the silences of death,
Thinking no further than the hand can hold,
All that grows old,
Yet works on uselessly with shortened breath.”
—Philip Larkin (1922–1986)
“Men’s actions are too strong for them. Show me a man who has acted, and who has not been the victim and slave of his action.”
—Ralph Waldo Emerson (1803–1882)
“When posterity judges our actions here it will perhaps see us not as unwilling prisoners but as men who for whatever reason preferred to remain non-contributing individuals on the edge of society.”
—George Lucas (b. 1944)